Radiator shutter



T. A. MORRIS;

RADIATOR SHUTTER.

APPLICATION FILED DEC.I3,1919.

Patented Apr. 4, 1922.

UNITED STATES PATENT OFFICE.

THOMAS A. MORRIS, or new Yomnn. Y.

RADIATOR SHUTTER.

Specification of Letters Patent. I

Patented .Apr. 4, 1922.

Application filed December 13, 1919. Serial No. 344,527.

provements in Radiator Shutters, of which.

the following is a specification.

This invention relates to air-deflecting shutters or vanes for regulating the cooling eifect of radiators especially for the circulating water or other liquid used in the water-jackets of motor-cars, tractors, airplanes or other apparatus employing internal combustion engines.

The principal object of the invention is to provide a novel means for regulating the flow of air'throu h the radiator.

Another object is to increase the cooling efi'ect of the radiator by the attachment to it of a metal structure having a great amount of radiating surface.

A further object is to deflect the course of the cooling air from a substantially horizontal plane (or a plane parallel to that in which the carer other vehicle is travelling) to a plane at a considerable angle thereto, in order to increase the radiating efiiciency of the structure.

Another object is to provide means for converting the usual form of radiator (without regulating device) into a more efiicient structure which may be controlled by theoperator to adapt it for varying weather conditions. The invention is not limited to an attachment for radiatorsas it may be incorporated in the radiator structure. 1

Other and ancillary objects will appea hereinafter.

In the accompany drawings which illustrate the invention,

Fig. 1 is a perspective view of the forward portion of a motor car showin the shutter-structure attached to the ra iator and the controlling device extending back to a point within reach of the driver.

Fig. 2 is a vertical section through the shutter-structure in its closed position, showing the radiator in outline partly broken.

away;

Fig. 3 is a similar view of the shutterstructure in its open position;

Fig. 4 is 'a perspective view of a fragment of one of the sheet-metal 'shutte'r-mem bers; and

Fig. 5 is a horizontal section taken on the line 5-5 of Fig. 3, partly broken away.

Referrlng to the drawings, the air defleeting and regulating means consists of two similar members 1 and 2, each consisting of a single piece of sheet metal. The

member 1 is sheared, slitted or otherwise cut to form vertical strips 3 and 3 and horizontal vanes 4, which are bent at an angle of approximately 45 from the vert1cal plane of the sheet from which they are out. Although the structure illustrated 1s formed of sheet metal, it is obvious that the device may be made of cast metal parts.

To the vertical strips 3 are attached by soldering or other means, vertical webs 5 for strengthening the structure. The ends of the vanes 4 are also soldered or otherwise attached to the sides of the webs 5, so that each vane is attached at one end to a vertical strip 3, at the other end to the vertical strip 3' and it is also attached to a vertical web 5. The member 2 is similarly formed of vertical strips 6 and 6', horizontal vanes 7 and webs 8. The vertical strips 3 and 6 are of a width approximately the same as the thickness of the webs 5 and 8 so that the ends of the vanes 4 and 7 which are attached to the strips 3' and 6' are in contact with the webs 5 and 8, and may be attached readily thereto by solder or other means. The vertical strips 3 and 6 and the spaces .between the unattached ends of the vanes 4 and 7 are slightly greater in width than the thickness of the webs 5 and 8 to provide clearance between the unattached ends of. the vanes 4 and 7 and the webs 5 and 8,

and permit the movement of member 1 in relation to member 2 without friction between the unattached ends of the vanes 4 and 7 and the adjacent sides of the ver- I tical webs 5 and 8, with which they are interlocked, but not in contact due to the clearances described.

Fig. 2 shows the member 1 in the position which entirely shuts ofi' the air from-the radiator 9, the member 1 being interlocked with the member 2' so that the rear edges sageof air between the several vanes 4 and the several vanes 7, which now register with them to form a series of angular passa es or ports, open at bothends.

e movement of member 1 is accom-.

plished by means of an arm 10, pivoted at 11 and actuated by a rod 12 which passes through the radiator and under the hood of the motor car to the control-board, where a handle 13 is provided, by means of which the rod 12 may be pushed forward to open the shutters or pulled back to close them. The flat bar 14' extends entirely across the top of the shutter structure and engages by means of the bars 19 and 20, which pass t r ough round holes 21 and 22 in the webs 8 and through slots 23 and 24 in the webs 5. The slots 23 and 24 are laced at the same angle as the vanes4, so t at movement of the member 1 is in a plane parallel to the plane in which the vanes 4 are set, and

transverse to the plane in which the vanes 7 are set. The front edges of the vanes 7 are always ad'acent to the rear surfaces of the vanes 4; t is relation of parts resulting in a series of angular air-passages or ports which may be adjusted to any size from zero to maximum by the movement of memher 1 in relation to member 2, as above described.

' .The member 2 is held in intimate contact'with the radiator 9, by means of bolts 25 which engage with the webs 8. Heat from the radiator is carried by conduction to the members 1 and 2, which present large radiating surfaces to the air which passes through them. The efiiciency of the radiator is therefore increased to a marked degree by the attachment of the shutter structure.

The angular relation of the vanes 4 and 7 causes the cooling air to change direction as it passes through the passages formed by the vanes and to impinge upon the radiating surfaces with a pressure which increases as the square of the speed. The radiating effect of the shutter-structure therefore increases in the same proportion as the load on the engine due to the resistance of the air. 'It is therefore unnecessary to shift the adjustment as frequently as would be desirable if the shutters were set in a plane parallel to the plane of' motion of the car, or were set at various angles to effect the adjustment.

at I claim is: 1. In a1r-regulat1ng means for radiators,

the combination with a member provided with a series of vanes, of another member also provided with a series of vanes, the two sets of vanes being in angular relation to each other. Y

2. In air-regulating means for radiators, the combination with a member provided with a series of vanes, of another member provided with a series of vanes in angular relation to the first series of vanes and means for varying the relation between the two series of vanes.

3. In air-regulatin means for radiators, the combination wit a member with a series of vanes immovab y fixed thereto, of another member provided with a series of vanes in angular relation to the first series of vanes, and means for varying the relation between the two series of vanes.

4. In air-regulatin means for radiators, the combination with a member provided with a series of arallel vanes, of another member provided with a series of parallel vanes, the vanes of one member being at an angle to those of the other member and means for moving one member relatively to the other member.

5. In air-regulating means for radiators, the combination with a member provided. with a series. of parallel vanes, of another member provided with a series of parallel .vanes, the vanes of one member being at an angle to those of the other member and means for moving one member in a plane parallel to the plane of the other member.

6. In air-regulatin means for radiators, the combination wit a member rovided with a series of parallel vanes, 0 another member provided with a series of parallel vanes, the two series of vanes being transverse to each other, and means for moving one member in a plane parallel to the vanes on that member. 7

7. In air-regulating means for radiators, the combination with a member provided with a series of parallel vanes of another member provided with a series of parallel vanes, the vanes of one member bein at an angle to those of the other mem er, both members being provided alternately with parallel webs transverse to the vanes, and spaces between the ends of adjacent vanes for receiving the webs of the other member, the two members forming a complete screen when they are in contact with each other. I

8. In air-regulating means for radiators the combination with a member rovided with a series of parallel vanes, 0 another member provided with a series of parallel vanes, the vanes of one member being at an angle with those of the other member, both members being provided alternately with parallel webs transverse to the vanes, and

rovided of the other member, and means for efl'ect-v ing the movement of one member relatively to the other member, consisting of a bar engaging at one edge with slots in the webs of one member and engaging at the other 10 edge with slots in the webs of the other member and a crank arm attached to the bar.

In testimony whereof I have signed this specification this 25th day of November, 15

' THOMAS A. MORRIS. 

